Weighing-scale



W. D. GUSEMAN; Weighing Apparatus.

Patented Oct. 4, 1859.

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VILLIAM D. GUSEMAN, OF MORGANTOWN, YIRGlNIA.

WEIGHING-SCALE.

Specification of Letters Patent No. 25,638, dated October 4, 1859.

To all whom it may concern:

Be it known that I, WILLIAM D. Gusa- MAN, of Morgantown, in the county of Moiiongalia and State of Virginia, have invented certain new and useful Improvements in Veighing-Scales; and I do hereby declare that. the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, in which- Figure l represents a perspective view of said scales. Fig. 2 represents a longitudinal vertical section through the same. Fig. 8 represents a vertical cross section through the same. Figs. et and 5 represent detached views hereafter to be referred to.

On the 17th day of May 1859, Letters Patent of the United States were granted to me for an improvement in weighing scales wherein the drums or rollers thatcarried the counterpoises, had a traveling as well as aA rolling motion on their axes, and a traveling scale or indicator. In the present case the rollers or drums have a rocking motion only, and the indicator scale is stationary. I show also the application of this counterpoise principle to a smaller class of scales, which may be platform, dish or counter scales, the size being immaterial. The saine general irinciple of the lever and counterpoise swinging below the level of the center of the rollers or drums pervading this, as well as my former invention referred to.

The weights or their equivalents may be adjustable as in the former case, and a single drum and counterpoise instead of two may be used, which simplifies and cheapens the scale very much.

I proceed to describe my present improvement as follows, reference being had to the drawings.

A represents the stationary frame of the scales.

B represents two V shaped levers of the form represented in Fig. l and which are hung to the frame A, by means of the links, c, and which can turn on the pivots, Z), within said links, as their bearings. The pivots, c, of the levers B, are supported by the lever C, which is also hung to the frame A, by means of a link or staple (Z, on which it can swing as its fulcrum, and the free end of which is secured to the band belt, or rope D, by means of a hook, f, or otherwise. The belt D passes around a drum, E, and its end is secured to the periphery of said drum.

F represents two standards which are secured to the stationary frame, A, and which serve to support the bearings of the pendulum drum, E; these bearings consist of knife edges g, the edge of which is pointed upward and which reaches into an angular recess of the journals, 71, of the pendulum drum. The angular recess in the journal is cut out in such a manner as that the point of the angle which rests on the edge g, shall be in the geometrical axis of the pendulum drum, E, and that therefore said drum may 7ing on its axis during the operation of the scales. The advantages of this knife edge as described over those used heretofore is, that it is ettectually protected against dust or dirt dropping upon it or lodging around its edge. by means of the journal 71 which entirely covers it, while the knife edges which point downward and swing on their edges are exposed to dust or dirt lodging around them which causes them to work imperfectly.

G, represents a pendulum rod which is secured to the drum, E, and which has a screw thread cut on its circumference by means of which the weight, H, may be adjusted on said rod to any desired position, and thus adjust the scale.

L represents a dial plate which is secured to one of the standards F and which is graduated so, that the number of pounds may be indicated thereon by means of a finger or pointer M which is secured to one of the journals /z of the drum E.

The movable platform N of these scales rests on the levers B by means of the pins, 0, the ends of which tit within the recesses 'm of said levers. Gr instead of a platform a dish may be used, when the scale is arranged for weighing smaller quantities it being adaptable to platform or counter scales either.

rThe operation of these scales is as follows. T he article to be weighed is placed upon the platform whereby the levers B, C, are turned on their fnlcra thus operating the belt D, turning the pendulum drum E and swinging its weight or counterpoise and causing the pointer M to indicate the number of pounds on the dial plate or vernier L.

T he scales on the vernier L may be graduated so as to indicate light or heats,Y weights, and the scales may be adjusted to weigh one or the other by adjusting correspondingly the weight H on the pendulum rod G.

lum dru'rn the journals of which are formed with triangular recesses and a counterpoise weight or its equivalent vibrating below the center of the drum or roller substantially in the inanner and for the purpose herein described, and this I claim whether the counterpoise be adjustable on its lever or not.

W; D. GUSEMAN. Witnesses:

E. C. LAZIER, EVANS D. FOGLE` 

